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Cushion|Natural|GIA

1.01ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1558450738

Certificate GIA 1558450738

Diamond specifications and retailer prices

From $1,405 CAD
As of November 5, 2026
Save $1,449 CAD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,855 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct natural cushion diamond

This 1.01ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558450738. Listed at 11 retailers as of November 4, 2026, with prices from $1,405 to $2,855, a $1,449 spread on the same certified stone. MOH London lists it at $2,855. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558450738
Dimensions6.72 × 5.57 × 3.84 mm
L/W Ratio1.21
Girdle conditionFaceted
Key to symbols
Feather, Natural
Top View
6.72 mm5.57 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558450738
Side View
Table 52.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,855 CAD|Low: $1,498 CAD|High: $2,894 CAD|Avg: $1,930 CAD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$1,514 CAD
Retailer 6$1,561 CAD
Retailer 7$1,751 CAD
Retailer 4$1,761 CAD
Retailer 5$1,905 CAD
Retailer 3$2,173 CAD
MOH London$2,855 CAD

37 data points across 7 retailers

11 retailers$1,405 CAD to $2,855 CAD

A
Cheapest Retailer
-
$1,405 CAD
A
Retailer 2
-
$1,495 CAD
View
A
Retailer 3
-
$1,514 CAD
View
Retailer 4
-
$1,561 CAD
View
Price last confirmed 12 days ago
Retailer 5
-
$1,719 CAD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$1,748 CAD
View
B+
Retailer 7
-
$1,751 CAD
View
A
Retailer 8
-
$1,761 CAD
View
A
Retailer 9
-
$1,905 CAD
View
B+
Retailer 10
-
$2,173 CAD
View
Most Expensive
B+
MOH London
179E14EB5 · Nov 4
$2,855 CAD
£1,598 GBP
View
10 more retailers have this diamond
Prices start from $1,405 CADSave up to $1,449 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.01ct Cushion
$1,405 CAD